It is possible to execute arbitrary commands as root in Terramaster F4-210, F2-210 TOS 4.2.X (4.2.15-2107141517) by sending specifically crafted input to /tos/index.php?app/app_start_stop.
https://thatsn0tmy.site/posts/2021/12/how-to-summon-rces/
Source: Mitre, NVD
Published: 2022-04-25
Updated: 2026-06-17
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Severity: Critical
Base Score: 9.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.00343